A film about the border guards of the North. Physical training of border guards outpost named after Hero-border guard AI Korobitsyn. Captain Romanenko is conducting a political conversation with the border guards. A drill. Search groups of border guards go on skis to search for a conditional border violator. The shepherd dog leads the border guards on the trail of the "intruder". Border guards detain the "intruder". Night watch of border guards in the forest; a border guard is monitoring the area from an observation tower. Conversations between border guards and residents of the border area. Workers of one of the state farms P. Ignatiev, P. Lukin, awarded government awards for assistance in protecting the state border. Performance of the Song and Dance Ensemble of the Border Guards of the Leningrad Military District.